Albert r



A. R. MILNER.

ADJUSTABLE PIAN() STOOL.

(No Model.)

Patented Mer. 22, 1892.

ma nonms PETERS co., mom-wma, wnsmxufon. n. c.

.a full, clear, and complete description thereof.

f UNTTED STATES PATENT rrrcn,

ALBERT R. MILNER, OF CLEVELAND, OHIO, ASSIGNOR TO THE MILNER MUSICCOMPANY,

OF SAME PLACE.

ADJ USTABLE PIANO-STOOL.

SPECIFICATION forming part of Letters Patent No. 471,184, dated March22, 1892.,-

Application iiled July 6, 1890. Serial No. 357,921. (No model.)

To @ZZ whom t may concern:

Be it known that I, ALBERT R. MILNER, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented certain new and useful Improvements in Adjustable Piano-Stools;and I do hereby declare that the following is The nature of my inventionrelates to the construction and arrangement of the various parts of anadjustable piano-stool, as hereinafter fully explained, whereby theneatness, durability, and strength of the stool are enhanced.

That the invention may be seen and fully understood by others referencewill be had to the following specification and annexed drawings, formingpart thereof, in which- Figure l is a perspective View of the completestool. Fig. 2 is aV plan view of the sleeve and seat-attaching plate.Fig. 3 is a vertical section of the entire stool. Fig. a is a sideelevation of one of the detachable legs, and Fig. 5 a plan View of theleg-brace.

Like letters of reference designate like parts in the specification anddrawings.

A hollow casting or sleeve A, having a seatattaching plate on its upperterminal, said plate being preferably an integral part of the sleeve A,is screwed, bolted, or otherwise rigidly attached to the seat. The boreof the uppei1 portion of the sleeve A is polysided, the one hereindescribed being hexagonal. A hexagonal nut G, Fig. 3, is dropped intothe sleeve A fromthe upper side before the seat is attached thereto.-The nutis therefore easily removed and replaced by a duplicate at atrilling cost in case of Wear. Two semicircular castings F F, forming atwopart sleeve, are then placed in the sleeve A on top of the hexagonalnut G. The upper terminals of the castings F F, being in contact withthe seat of the stool when said seat is attached to the plate, hold thenut in place. The rod D, threaded part Way down from its upper end,passes up through the opening in the sleeve A, as shown in drawings,entering the nut G. The sleeve A extends down around the rod D, hidingthe threaded portion of said rod when the seat is lowered, raised to itsextreme height, or at any intermediate point, thereby excluding all dustor sand. Said sleeve turns freely around the rod D.

My improved stool may have three or more legs, the one shown in drawingshaving three, which are attached to the rod D in the following describedmanner: The legs are each substantially the form shown in Fig. 4, havinga lug or hook J, which is an integral part thereof. Said hook isinserted in the eye c at the outer terminal of an arm of the leg-braceC, Fig. 5. There are the same number of arms to said brace as there arelegs to the stool, each arm having a similar eye, as shown in Fig. 5.vThe upper terminals of the legs are then`brought in contact with eachother and the ring H placed over them, holding them together,

thereby locking the legs rigidly to the brace,

resultant from the pressure of the shoulder O of the leg on the shoulderQ of the leg-brace and the peculiar form of the hook J. The upperterminals of the legs are so formed that when brought in close contactwith each other they will form a circular opening within the ring H. Therod D, having a shoulder L, Fig. 3, thereon, passes down through thering H and the circular opening formed at the upper terminals of theIlegs B B vB, said shoulder coming in contact with the ring H, and the llower end M of the rod D will enter the hole N, Fig. 5, in the leg-braceC. A screw is then threaded into the lower end of the rod D from beneaththe. leg-brace C, causing-a tension or strain on the legs B B B,resultant from the drawing of the shoulder L on the ring H; or a nut maybe threaded on the lower end of the stein and bear on the under side ofsaid brace and still adhere to the nature of my invention. It willreadily be seen that the tension thus caused on the legs and brace willform a perfectly rigid frame. The threadon the upper portion of the rodD may be square or it may be a V-thread, a square thread, how eve r,being preferable. ing down over the rod D in the manner hereindescribed, prevents sand, dust, dac., from entering the thread on saidrod. Consequently there is less wear than in the ordinary stool, wherethe rod is attached to the seat and screws down into the standard.

The sleeve A, extend- Having described my invention, what I claim, anddesire to secure by Letters Patent, 1s

1. In au adjustable piano-stool, the sleeve A,rigidly attached to theseat, the upper portion of the bore of said sleeve being polysided inform, in combination With a polysided nut G and two-part sleeve F F,arranged Within said sleeve A in conjoint operation With the screwuod D,legs l2 B B, and leg-brace C, arranged substantially in the manner andfor the purpose set forth.

2. In a piano-stool, a seat having a sleeve attached to the under sidethereof, a supporting-rod the upper end of which is contained

